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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109959] `(a > 1) ? 0 : (a == 1)` is not
 optimized when spelled out at -O2+
Date: Wed, 24 May 2023 22:21:38 +0000
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X-Bugzilla-Component: tree-optimization
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X-Bugzilla-Keywords: missed-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109959

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
here is another related testcase but this was the exactly reduced one from
bitmap_single_bit_set_p :

```
_Bool f(unsigned a, int t)
{
  void g(void);
  if (t)
    return 0;
  g();
  if (a > 1)
    return 0;
  return a =3D=3D 1;
}
```

this should be optimized down to:
```
_Bool f(unsigned a, int t)
{
  void g(void);
  if (t)
    return 0;
  g();
  return a =3D=3D 1;
}
```=